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Finding the Fourth Proportional to 101,614.95, 140,228.64 and 55,674.79

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Solution

The fourth proportional to 101,614.95, 140,228.64 and 55,674.79 is: 76,831.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,614.95 : 140,228.64 = 55,674.79 : x
  2. Step 2: Convert to fraction form
    101,614.95/140,228.64 = 55,674.79/x
  3. Step 3: Cross multiply
    101,614.95x = 140,228.64 × 55,674.79
  4. Step 4: Simplify right side
    101,614.95x = 7,807,199,996.34
  5. Step 5: Solve for x
    x = 7,807,199,996.34/101,614.95
  6. Step 6: Final answer
    x = 76,831.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.